Bicycle frame



FIG. 1 is a perspective view of a bicycle frame according to the invention.

FIG. 2 is a rear elevation view of the bicycle frame shown in FIG. 1.

FIG. 3 is a left side elevation view of the bicycle frame shown in FIG. 1.

FIG. 4 is a top plan view of the bicycle frame shown in FIG. 1; and,

FIG. 5 is a front elevation view bicycle frame shown in FIG. 1.

The right side elevation view of the design is a mirror image of the left side elevation view, so the right side elevation view has been omitted.

The portions of the bicycle frame shown in broken lines illustrate unclaimed structure. 

CLAIM We claim the ornamental design for a bicycle frame, as shown and described. 